Prosecutors in Milan have asked a court to sentence Silvio Berlusconi to five years in jail, over charges that he bribed his former tax lawyer.
The ex prime minister denies accusations that he paid David Mills 450,000 euros to lie in court, in several trials in the 1990s.
A guilty verdict would be merely symbolic: Berlusconi would appeal and the case would then become too old under the statute of limitations.
Mills, a Briton and the estranged husband of former UK cabinet minister Tessa Jowell, was convicted of perjury in 2009 but his four-and-a-half year jail term was dropped for the same reason.
In two other trials Berlusconi is accused of tax fraud and of paying for sex with an underage prostitute.
Another corruption trial begins next month.